CVE-2026-66373

redis: Redis: Remote Code Execution via specially crafted RESTORE payload

Published Jul 25, 2026 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Description
Redis before 8.8.0, in the unusual case where an authenticated attacker can execute RESTORE, allows remote code execution via a RESTORE payload where the same NACK (pending entry) is referenced by more than one consumer, because deleting both consumers via XGROUP DELCONSUMER leads to a double free. NOTE: this issue exists because of an incomplete fix for CVE-2026-25243.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-4722-1 redis security update
Debian DSA Debian DSA DSA-6538-1 redis security update
History
Type Values Removed Values Added
Title redis: Redis: Remote Code Execution via specially crafted RESTORE payload
Weaknesses CWE-1341
References
Metrics threat_severity

None

threat_severity

Important

Type Values Removed Values Added
Title Redis Remote Code Execution via Double Free in RESTORE with Consumer Group Deletion
Type Values Removed Values Added
Title Redis Remote Code Execution via Double Free in RESTORE with Consumer Group Deletion
Type Values Removed Values Added
Title Remote code execution via double free in Redis RESTORE with XGROUP DELCONSUMER
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title Remote code execution via double free in Redis RESTORE with XGROUP DELCONSUMER
Type Values Removed Values Added
Description Redis before 8.8.0, in the unusual case where an authenticated attacker can execute RESTORE, allows remote code execution via a RESTORE payload where the same NACK (pending entry) is referenced by more than one consumer, because deleting both consumers via XGROUP DELCONSUMER leads to a double free. NOTE: this issue exists because of an incomplete fix for CVE-2026-25243.
First Time appeared Redis
Redis redis
Weaknesses CWE-415
CPEs cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:*
Vendors & Products Redis
Redis redis
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Aug 7, 2026, 12:01 AM
Reserved
Jul 25, 2026, 12:08 AM
Status
Awaiting Analysis
Published
Jul 25, 2026, 1:16 AM
Modified
Sep 9, 2026, 4:03 PM
Severity
Important
Public date
Jul 25, 2026, 12:08 AM